Clarification on ECSPI Master Read Frequency for i.MX8MP

[Maulik_Manvar]

Dear NXP Support,

I am working with the i.MX8MP processor and reviewing the ECSPI timing specifications listed in the datasheet. The table provides values for "Master Read Frequency" and "Master Write Frequency" without "Min" or "Typ" values. 

I attached imx8mp processor datasheet table 36 & 37 here for your reference.

Could you please confirm that the "Master Read Frequency" listed in the table represents the maximum frequency at which the ECSPI master can reliably read data from a slave device and the "Master Write Frequency" listed in the table represents the maximum frequency at which the ECSPI master can reliably write data from a slave device?

Thank you for your assistance.

Maulik

[Maulik_Manvar]

In addition, I would like to confirm that setting frequencies below the Master Read Frequency and Master Write Frequency is also a valid scenario.

My understanding is If I set 1MHz which is less than Master Read Frequency and Master Write Frequency then also my read/write timing will be proper. Please clarify, Is this a correct understanding ?

Thanks much,

Maulik

[Alejandro_Salas · Accepted solution]

Hello @Maulik_Manvar 

Your understanding is correct.

The "Master Read Frequency" listed in the table represents the maximum frequency at which the ECSPI master can reliably read data from a slave device and the "Master Write Frequency" listed in the table represents the maximum frequency at which the ECSPI master can reliably write data from a slave device

Best regards,

Salas.

[Maulik_Manvar]

Thank you so much @Alejandro_Salas for clarification...